I"m wondering if there's actually something in your water that he doesn't like. I just read (today) about a a dog who refused to drink water, and it turned out there was too much lead in that person's water. So...have you tried using bottled water to see if you get a different reaction? I've had 3 kidney cats and all three of them drank constantly, one would take a drink right after getting his sub-q fluids . Anyway, just a thought.
Also, for one of our cats, we actually paid a Vet Tech to come over to our house to administer the fluids. Is that something you could do? Surely it would be less expensive than taking him over to the Vet's office, and it would be less stressful on your little guy. Then perhaps YOU and the Vet tech together could handle the sub-q's at home, using a Cat Bag. Just corner your buy in a bathroom or something before the Tech is due to arrive so he can't hide under a bed.
Also, for one of our cats, we actually paid a Vet Tech to come over to our house to administer the fluids. Is that something you could do? Surely it would be less expensive than taking him over to the Vet's office, and it would be less stressful on your little guy. Then perhaps YOU and the Vet tech together could handle the sub-q's at home, using a Cat Bag. Just corner your buy in a bathroom or something before the Tech is due to arrive so he can't hide under a bed.